Shuttle



. Dec. 17, 19 40. A I NG 2,225,245.

SHUTTLE Filed June 19, 1940 HARE) A. B/LL/NG s.

ATTOENE Y.

Cal

Cal

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Patented Dec. 17, 1940 SHU'J.".I.1J:. Harry Augustus Billings, Hopedale, Masa, assignor to Draper',Corporation,

corporation of Maine Hopedaie, Mass, an

Application June 19, 1940, Serial No. 341,334

6 Claims. (Cl. 139-221) This invention pertains to loom shuttles and more particularly relates tot-he construction-and mounting of the threading blocks of such shuttles.

Shuttles of the type to which my invention applies commonly include a shuttle body having a bobbin receiving cavity, a threading block receiving recess at one end of such cavity and means for holding the threading block in the recess.

In the usual prior-constructionthe threading block is snugly fitted into the recess with close contact between the abutting surfaces of the wood of the shuttle and the metal of the threading block to prevent the warp threads of the shed and the running filling thread from being caught therebetween.. In such constructions the threading block is held in the recess by a screw passing through the walls of the recess and the threading block. I find that it is difficult to secure sufliciently close contact between the abutting surfaces of the shuttle wood and the metal threading block due to unevenness ,in the construction of such surfaces and to expansion or contraction of the wood as the shuttle is continued in use. However, itis necessary that these surfaces be kept in closecontact and if the surfaces move apart it is essential that they be readjusted into close contact to prevent .the warp threads of the shed and the running filling thread from being caught therebetween; l

Accordingly it is the principal object of my invention to provide a loom shuttle comprising a shuttle body having a bobbin receiving cavity and a threading block receiving recess longitudinally aligned therewith, a threading block seated in the recess, means for adjusting the threading block in said recess whereby a close contact may be had between the abutting surfaces of the threading blockand the shuttle body and a horizontal screw passing transversely through the shuttle body and the threading block for clamping the threading block and adjusting means in adjusted position.

The foregoing and other objects of the invention are accomplished in the construction illustrated on the accompanying drawing, of which:

Fig. 1 is a view in section taken on line 1-4 of Fig. 2; I

Fig. 2 is a front view of one end of the shuttle;

Fig. 3 is a view in cross-section taken on line 3-3 of Fig. 2; and

Fig. 4 is a detail view in perspective showing the adjusting element. I

The shuttle shown on the drawing comprises a shuttle body I of the usual size and shape havng the usual cavity 2 therein for receiving a bobbin 8 which is adapted to carry the filling supply,

used in weaving. The bobbin supporting end of the shuttle is Many suitable usual construction and is accordingly not shown or described.

The eye end of the shuttle is provided with a recess 4 formed in the shuttle wood for the reception of a-threading block 5,-and has a side delivery eye 6 shown (on Fig. 1) as extending through the side wall of the shuttleand through which the filling" from the bobbin usually passes during thepassage of the shuttle through the shed. The fI'0l'lt W81l of the shuttle adjacent the.

PATENT OFFICE portion 9 having upwardly-extending side walls Illand II through which extends the longitudinal thread passage i2. Thread tensioning means may be provided such as oppositely disposed ten sion plates l3, I3 which extendtransversely of the thread passage l2. Y

The top portion." of. the side wall ll of the threading block 5 is substantially of triangular form and downwardly curved to conform'to the contour of the top andside portions of the shuttle wood, substantially as indicated on Fig. 2.

The bottominclined surface l5? of thetcurved portion l5 of the threading block-is seated on the inclined surface I of the slot leadingto the side delivery eye. When these surfaces are in proper engagementthe curved contiguous outer surfaces of the wood of the shuttle and the metal of the threading block, offer a continuous unobstructed in a loom. Thus the side containing the side delivery eye is the front side of the shuttle and on Fig. 1 of the drawing -rearwardly" is away from the front wall toward the top of the sheet. By outwardly I mean in a direction longitudinally of the shuttle from the, bobbin cavity toward the tip of the shuttle. 1

In prior constructions the threading block" is I usually secured in the recess provided therefor by means of a screw passing through the side walls of the recess and the threading block. However, insofar as I am aware, no means have been" provided for adjusting the threading block within the recess.

Due to the unevenness of the contacting inclined surfaces of. the shuttle body and the threading block it is .diflicult to secure-close fitting contact between such surfaces unless some means is providedlto idrawthei block 1 down tishtly onto theiwocd onus shuttle1body.

1 the shed andthe running filling,

. tobe caught thereinand brohen. 1

1n the drawing, I haveshownthe l embodiment oi a construction; providinaimeans for adjusting the threading blockflwithin therecess. Suchmeans 1-mayjgcomprise fan eccentric t,

member i1 journallediin a hole in the base I M the threadinablock Themember I! may W 1 be formed as an: extension oir a; bushingwal I dournailed in the front wallet 11the1-recess1 The ec-X centric I1 andnbushina It; haye 1a lona'itudinal hole 120 extendlna1 1therethroushi1; Member- 111" is 1 eccentric with relation to thezhole 1|. ,The :hole 1 :2I isqot the proper size tojloosely receive a screw: 1

2 I. 1 .The screw ll 1extendsuthrough1'1the front :wall 1oi' the recesstl, 1 the-1 bushinz11- i lg; the. eccentric 1 member li and isthreadedinto a nut 2 secured a in a recess" in the rear1wall1 cii'the recessl1111 $5 5 1The1bushina ll positionedqongthe 1 screw1112i I 1with the end u1 oi-1the1bushinI;en;aaed11by;the1 1 head II of the screw, either directly or 1: through 1 block is adjustei-iaitibushing havinma shoulder desired. 1 The 1 bushing dismay be provided with 1 0 a shoulder 21 whichwextends aroundthe screw112 l 1 the1meansl o1 interveninz' 1washersf It, as 11may1 be and bears against theiront i'aceof thethreading block l. 1. The bushing; llmayialsobe; provided 1 with a 1screw driver slot ll iorflconvenienceqin 1 1 turning the bushing; whenithe screwa11al istightened the bushinm Ilais acted upon by the head of the screw-toiorce theshoulderfllagainst 1 the threading block and thereby cla threadixikblockkand'bushing toketherl t0 ness'otthe inclined surfaces ot 1theblock;ior1wood.' i

or shrinkagefoi' 1 the wood: "the inclined sariace ll of the threadingIblock-is raised frorn theinclined 1 1surtace I of the openinz'i leadina i to the side de -u c 1 turned slightly to ,therikht, askwed on ng; 2 1 1 by rneans of a screw driiverrenzasedwlm now a;

This turning of. the bushinzqrnoye's the threadinfi block downwardly and the two surfaces 1! I and "I areagain brought tikhtlyfintocontact. Then;

when the screw -2 l' 'is replacedit: will iirmly hold f 1. a m shuttle cornprisingj' af'shuttle body having a recess1adjacent'one end thereof; said 1 recess having an inclined'surtacei'orming a seat, a threading block seatedin saidrecessandhav- 6 ing1 a corresponding inclined suriaceifengaiing said first named 1 suriace, adjustable "nieanfs' for m'ovin: said ,block whereby said-ensuing. inclined surface of saidflblock is brought into tightengagement with said ensasinainclined surface 'of 5 said recess and meansior clamping saidladli stg 1 able means inadjustedpositionu 11 1 V 2. A loom 1 shuttle; comprisin a shuttle body having a recessthereimsaid recess havinz lona'i- 1 tudinal side walis,.one-oi' said side walls beina 70 cut awayiormin'm a'ninclined suriaceya thread inglblock seated in *Isaid and havina an inclined surtace1restinsuupon1 said first: named inclined surface; adjustable means ensaginzsaid block for moving same wherebysaid contacting 1 1 theusidewallsotsaldislotlbeiiiilbeyelediiforniinx 1 inclinedr surt ac'esg a 1 threading 1 block] in 1 inclined suri acesfmay'be D d i8 W1wIether 1 and umaors ampm ad-1 was: mansinfadmsted seasons 3. A1 loom sh'uttle11comprising a shuttlejbody having a thereingsaidlrecesshavinz lonel- 1,tudinalfside 1walls,1:one1 oi '1said1 sidewalls beins 1 cut awayiorrningfaninclined surface. a thread- 11 ing'cblochlseatjedgin1sald 1recess and having an 1 inclined amass 1 resting upon said inclined suriace or said sidewall cut e; recess; an adjustable memberdournalledlinone otsaidside walls and h m a s cf n m mipn t re tension ;jo1irnalled1;in1 said block, 1 whereby 1 upon rotation at said membersaidblock ismoved 1 brinz1 81 said incllned s'urface 11 ols'aidblock into 1 tight engaaement 11w1m 1 1ins mcunemmm of 1 said wall andnieans to clamp said block and said adjustable membei' 1 ini1adlusted 1positioni 1 1 1 1 1 11' 1 4.;A loom shuttle1 1oomprisina1 a shuttle body havinn a1 1 recess1 adlacent 1 1 one end thereof, a threading b lock' iseated; in 1 said 1recess, a screw member passin'mtransyersely1throuah'said shuttle body and; said use: Jot 1 securing 1 said block in 1 said recess aybushinm mounted on said screw 1 and having 1 anjeccentric jex'tension thereon; said eccentric 1 extension 1 1journalled; 1in 1 said block, whereby upon" rotating 1 said 1 bushing said bearing against said block andan end ens sed 1 Said screwristightenediai block'vin its1adlustedi1position in said when 5. A loom shutt1e coniprising body 1, having1 a; recess 11.therein, said recess 1 havina 1 a front and} rear wall: said front wall 1 havina an p ning 'therein comniunicatinai withwsaid recess and also; having a 1 slot leading to 1 said opening,

said recess; said ithreadlng :block 1 an inciined surtace in1'snug enzagementjfiwith 1 one of 1 said first named 1inclined surfaces; means1ior1se- 1 curing sajid' b1ock infsaid recess f means for mov ing1 and block to amend engagedinclined suriaces into closer 1 ;contact and meansrcarried by and 14 actuated: by:1said ixilrst named 1 n eans1 ior clamping; said 1 1block 1 and 11 said second1 j named meansinsaid recese 1 6,' ;In .a shuttle ior an 1 autornatic111ep1enishinz 1 loom, the11con1bination1 oi' a shuttle body having 1 a recess therein; saidgrecess haviny a1 front and rear-11 wall; 111said "front walll ha inaf an opening therein communicating with said recess andalso having a slot leading to. said 1 opening, the 1 side walls of said slot beins' bevelled formins inclined surfaces, 11a 1 threading block iseated 1111 1 recess and hayingan inciined1suriace1in snug engagement with one oi'1'1said;ilrst1 named inclined 1 surfaces, 1 a1 screw 11mernber paasinm 1 transversely through said front] and rear 1wal1s 1ot, said recess ands-said threading block, ;1a bushing mounted on said screw member and Journalleddn said front wall oi said said bushing an eccentricextensionthereon; said extensionbeini Journailed in said threadlnz block', ,rneans 1I5 1' lded on said ior rotating 1 same 1whereby said threadins block is hiovfable to engaged inclined suriaces oi said block Landlsaid 1 slot into closer engagement; said: bushin': having a shoulder bearing against; said block and an end en gaged bythe headjoi said screw to thereby clamp saidblock in adjusted position upon tightening o!1saidscrew. 1 1

1 1 HARRYI AUGUSTUS BILLINGS. 

